Question

I don't understand this question.

Answer 1

`c_(5)` = - 12

Explanation:

To find the 5 th term in the sequence, calculate the 3 rd and 4 th terms, that is

`c_(3)` = - 2
`c_(2)` -
`c_(1)` - 1 ← substitute in values

= - 2(1) - 2 - 1 = - 2 - 2 - 1 = - 5

`c_(4)` = - 2
`c_(3)` -
`c_(2)` - 1 ← substitute values

= - 2(- 5) - 1 - 1 = 10 - 1 - 1 = 8

`c_(5)` = - 2
`c_(4)` -
`c_(3)` - 1 ← substitute values

= - 2(8) - (- 5) - 1 = - 16 + 5 - 1 = - 12